<SEC-DOCUMENT>0001493152-23-003230-index.html : 20230201
<SEC-HEADER>0001493152-23-003230.hdr.sgml : 20230201
<ACCEPTANCE-DATETIME>20230201060538
ACCESSION NUMBER:		0001493152-23-003230
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20230127
FILED AS OF DATE:		20230201
DATE AS OF CHANGE:		20230201

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Breen Michael Martin
		CENTRAL INDEX KEY:			0001863633

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40023
		FILM NUMBER:		23574641

	MAIL ADDRESS:	
		STREET 1:		LOWSLEY HOUSE 133 HEADLEY ROAD
		CITY:			LIPHOOK
		STATE:			X0
		ZIP:			GU30 7PU

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GT Biopharma, Inc.
		CENTRAL INDEX KEY:			0000109657
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				941620407
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		8000 MARINA BLVD
		STREET 2:		SUITE 100
		CITY:			BRISBANE
		STATE:			CA
		ZIP:			94005
		BUSINESS PHONE:		(800) 304-9888

	MAIL ADDRESS:	
		STREET 1:		8000 MARINA BLVD
		STREET 2:		SUITE 100
		CITY:			BRISBANE
		STATE:			CA
		ZIP:			94005

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	OXIS INTERNATIONAL INC
		DATE OF NAME CHANGE:	19940916

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DDI PHARMACEUTICALS INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DIAGNOSTIC DATA INC /DE/
		DATE OF NAME CHANGE:	19850312
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownership.xml
<TEXT>
Document 1 - file: ownership.html

Document 1 - RAW XML: ownership.xml

</DOCUMENT>
</SEC-DOCUMENT>